Caio

At a Glance

Meaning

Traditionally glossed as 'rejoice' (as a Portuguese form of Gaius), though the ultimate origin of Gaius is uncertain

Origin

Portuguese (from Latin Gaius)

Gender

Boy

Pronunciation

KY-ohListen

Caio (KY-oh) is a boy's name of Portuguese origin, taken from the Latin Gaius, with a worldly feel. It's traditionally glossed as 'rejoice,' though that's a traditional meaning rather than a certain one, since the ultimate root of Gaius is uncertain.

Meaning & Origin of Caio

Meaning: Traditionally glossed as 'rejoice' (as a Portuguese form of Gaius), though the ultimate origin of Gaius is uncertain.

Origin: Portuguese (from Latin Gaius).

A common claim: Widely said to mean 'rejoice.' Actually: 'Rejoice' is the traditional gloss for Gaius-derived names in most baby-name references; scholars note the actual root of Gaius is uncertain, so treat this as a traditional rather than certain meaning.

Source: Wiktionary.

How to Pronounce Caio

Popularity of Caio

Caio is a rare name in the U.S. It ranked #3695 in 2024 with 30 babies, down from its peak of #3063 in 2023, when 40 babies received the name.

Names Like Caio

These names share Caio’s style, era or origin.

• Bento
• Cassio
• Diogo
• Duarte
• Fabio
• Lourenco

FAQ

What does the name Caio mean?

Traditionally glossed as ‘rejoice’ (as a Portuguese form of Gaius), though the ultimate origin of Gaius is uncertain. (Source: Wiktionary)

How do you pronounce Caio?

Caio is pronounced KY-oh (IPA: /ˈkaɪoʊ/).

Is Caio a popular name right now?

Caio peaked at #3063 in 2023 and is ranked #3695 as of 2024. (U.S. Social Security Administration data, 1990–2024.)

Make Caio Name Art

Free printable nursery art for Caio, pre-loaded below — pick a layout, palette, and font, then download a print-ready PNG.